Sex ed is apparently taken very seriously at Brooklyn's James Madison High School, aka Horndog High, which is embroiled in yet another sex scandal with charges that married English teacher Erin Sayar had a monthlong sexual relationship with a 16-year-old student.

Erin Sayar, 35, allegedly had sex with her 11th-grade student Kevin Eng at least eight times when she was supposed to be tutoring him last December, according to a new Brooklyn Supreme Court filing obtained by the New York Daily News.

The scandal surrounding Sayar comes on the heels of two previous scandals involving naughty teachers at the school, which was nicknamed Horndog High in 2009 when two female teachers were fired after two handymen discovered them holding each other in a classroom at the school, the Daily News reported.

Sayar had her sexual encounters with Eng at the school itself and in her SUV, and also smoked marijuana with Eng at the school as well, according to the court filing.

Eventually, they began kissing and then engaged in sexual intercourse and oral sex inside the SUV, an investigative report said.

And they had an online flirtation as well, the News reported, citing the report:

I love you so much, Eng told Sayar via Facebook message at one point, the report alleges.

The tryst was discovered only because Eng's girlfriend found the Facebook messages after breaking into his account in a fit of jealousy, according to the filing. She then told school authorities about their relationship, and the school went to Eng's parents in January, the News reported.

Eng, who is now 17 years old, first denied the claims but later copped to the relationship in March, and he backed up his confession by describing tattoos found on intimate parts of Sayar's body, according to the News, and the pair allegedly exchanged 3,856 text messages in 17 days in December.

As parents, we entrust our teachers with the care of our children to cultivate and nurture their foundations, not to exploit their innocence, nor rob them of their childhood, the Eng family lawyer, Bruce Baron, told the News.

Maureen and Stephen Eng are filing a $10 million suit against New York City to collect damages for the alleged relationship between Erin Sayar and their son, the News reported.

In the meantime, Sayar has been removed from the classroom and the city Education Department is pursuing her termination.